EGR Cooler issues – Diagnostics and Engine Carbon Clean on a BMW 320d (2011 – 105,104 miles)

❗ EGR Cooler issues with this BMW 320d

⚠️ Just bought a vehicle? Get it checked out and cleaned up with our Which? Trusted Traders approved service.

🚗 Here we have a BMW 320D (2011 – 105, 104 miles) booked in for diagnostic consultation and Engine Carbon Clean.

ℹ️ The owner bought it 2 months ago (with warranty) and having used us previously got us to assess and clean it up.

🔎 Initial inspection found no major issues in the engine bay, but there was the usual vibration, rumble and lack of response from the carbon present.

EGR Cooler issues - Diagnostics and Engine Carbon Clean on a BMW 320d (2011 - 105,104 miles)

💻 Initial diagnostics showed just 2 codes present since purchase (where they were likely wiped). One of these consistently reappeared within 10 minutes of clearing and needs addressing with the warranty company – EGR Cooler plausibility.

EGR Cooler issues - Diagnostics and Engine Carbon Clean on a BMW 320d (2011 - 105,104 miles)

📊 Live data monitoring showed data looking OK with coolant temperature at 95°C, good injector fuelling and good fuel pressures, recent regeneration and EGR flow and movement all OK.

👨‍🔧 On with the clean and the engine soon smoothed out and quietened down and by the end it was much quieter, smooth and responsive again.

EGR Cooler issues - Diagnostics and Engine Carbon Clean on a BMW 320d (2011 - 105,104 miles)
EGR Cooler issues - Diagnostics and Engine Carbon Clean on a BMW 320d (2011 - 105,104 miles)

☑️ Full live data Diagnostics
☑️ Which? Trusted Traders approved Engine Carbon Clean